Energy-saving device of energy-saving three-phase asynchronous motor and use method of energy-saving device

Abstract

The invention is applicable to the related technical field of energy conservation of three-phase asynchronous motors, and provides an energy-saving device of an energy-saving three-phase asynchronous motor and a using method thereof, the device comprises a main shell, a rotating shaft is arranged on the main shell, a rotating part used for driving the rotating shaft to rotate is arranged in the main shell, and the device further comprises a heat dissipation unit arranged in the main shell, the heat dissipation unit comprises a plurality of first rotating shafts, and heat dissipation fans are arranged on the side faces of the first rotating shafts; the first rotating unit is arranged on the outer side of the rotating shaft; comprising a plurality of first rotating blocks distributed on the outer side of the rotating shaft in a circumferential array mode, and the first rotating blocks are connected with the rotating shaft through temperature memory metal; the rotating shaft rotates, after the working temperature of the rotating part and the rotating shaft exceeds the critical temperature of the temperature memory metal, the temperature memory metal senses the temperature change and extends, and the cooling fan is driven to rotate under the connection of the connecting unit to cool the rotating part and the rotating shaft.

Description

Technical Field

[0001] The present invention belongs to the technical field related to energy saving of three-phase asynchronous motors, and in particular relates to an energy-saving device for an energy-saving three-phase asynchronous motor and a method for using the same. Background Art

[0002] The three-phase asynchronous motor is a type of induction motor that is powered by a 380V three-phase AC current (with a phase difference of 120 degrees). Since the rotor and stator rotating magnetic fields of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, so it is called a three-phase asynchronous motor.

[0003] Patent publication number CN117748835A is a Chinese patent entitled "An Energy-Saving Device for a Three-Phase Asynchronous Motor." The device provides an installation mechanism. When a heat sink needs to be installed, the operator can press a connecting plate to lift one end of a movable rod through the connecting plate, and then place the heat sink along the rectangular block on the inner side wall of the three-phase asynchronous motor body. The operator can release the connecting plate, and the movable rod will pop out under the reaction of the extrusion spring, so that the movable rod is engaged with the clamping block, completing the installation of the heat sink and the three-phase asynchronous motor body. However, the above device has some shortcomings when actually used. When the asynchronous motor rotates, the rotation speed varies. When the rotation speed is high, the working heat generated is higher, and heat dissipation is more necessary. However, existing heat dissipation devices can only dissipate heat by rotating the fan at a constant speed. This results in energy waste when the asynchronous motor rotates at a low speed and does not generate high heat. Based on this, an energy-saving device for an energy-saving three-phase asynchronous motor and a method of using the same are now proposed to solve the above problems. Summary of the Invention

[0004] The present invention provides an energy-saving device for an energy-saving three-phase asynchronous motor and a method for using the same, aiming to solve the problem that when the asynchronous motor rotates, there is a difference in the rotation speed. Often, when the rotation speed is higher, the working heat generated is higher and more heat dissipation is required. However, existing heat dissipation devices can only dissipate heat by rotating a fan at a constant speed. This results in the problem that when the asynchronous motor rotates at a low speed and does not generate high heat, the operation of the heat dissipation device causes energy waste.

[0005] The present invention is achieved by providing an energy-saving device for an energy-saving three-phase asynchronous motor, comprising a main housing, a rotating shaft provided on the main housing, a rotating portion provided within the main housing for driving the rotating shaft to rotate, and further comprising:

[0006] a heat dissipation unit disposed in the main housing and configured to dissipate heat from the rotating shaft and the rotating portion, the heat dissipation unit comprising a plurality of first rotating shafts, each of the first rotating shafts being provided with a heat dissipation fan on its side;

[0007] a first rotating unit, which is arranged outside the rotating shaft; and comprises a plurality of first rotating blocks distributed in a circumferential array outside the rotating shaft, wherein the plurality of first rotating blocks are connected to the rotating shaft via a temperature memory metal; and

[0008] a connecting unit, which is used to connect the first rotating shaft and the first rotating block,

[0009] The temperature memory metal extends in a first temperature range and cooperates with the connecting unit to make the first rotating block contact the first rotating shaft, and the first rotating block drives the first rotating shaft to rotate;

[0010] The temperature memory metal has a constant length in the second temperature range and cooperates with the connecting unit to ensure that the first rotating block does not contact the first rotating shaft, and the rotation of the first rotating block does not affect the rotation of the first rotating shaft.

[0011] Preferably, a first connecting rod is fixedly connected to the main shell, a plurality of the first rotating shafts are rotatably connected to the first connecting rod, and the plurality of the first rotating shafts are connected by a conveyor belt.

[0012] Preferably, the first rotating unit includes a first rotating cylinder, in which a plurality of first connecting blocks distributed in a circumferential array are fixedly connected, a first inclined surface is provided on the first connecting block, a first slot is provided on the rotating shaft, a first insertion rod is inserted into the first slot, the first insertion rod is connected to the first slot by a first spring for providing elastic force, a first curved surface is provided on the first insertion rod, the outer side of the first rotating cylinder is connected to the first rotating block by a temperature memory metal, a second rotating cylinder is provided on the outer side of the first rotating cylinder, and a plurality of through holes cooperating with the first rotating block are provided on the second rotating cylinder.

[0013] Preferably, a first annular clamping protrusion is fixedly connected to the second rotating cylinder, and a first annular clamping groove cooperating with the first annular clamping protrusion is provided on the first rotating cylinder.

[0014] Preferably, the connecting unit includes a rotating gear fixedly connected to the first rotating shaft close to the rotating shaft, the rotating gear is provided with first gear teeth, and the first rotating block is provided with second gear teeth meshing with the first gear teeth.

[0015] Preferably, an adjusting unit for adjusting the heat dissipation position of the heat dissipation unit is provided on the rotating shaft.

[0016] The second end of the driving member is a chain which has a first end fixed to the side panel that is located adjacent the first gear and a second end of the driving member is engaged with the first and second gears and the transmission gear and is then connected with the spring which is fixed to the side panel that is located adjacent the first gear and the transmission gear.

[0017] Preferably, a heat sink is provided on the main shell, a connecting ring is fixedly connected to the heat sink, a holding handle is fixedly connected to the connecting ring, a limiting protrusion is provided on the main shell, a limiting groove is provided on the heat sink, and the heat sink is connected to the rotating shaft through a limiting unit.

[0018] Preferably, the limiting unit includes a fourth rotating cylinder sleeved on the outside of the rotating shaft, a fourth connecting block is fixedly connected to the fourth rotating cylinder, a third inclined surface is provided on the fourth connecting block, a second slot is opened on the rotating shaft, a third insertion rod is inserted in the second slot, the third insertion rod is connected to the second slot by a third spring for providing elastic force, a third curved surface is provided on the third insertion rod, a first clamping protrusion is fixedly connected to the fourth connecting block, and a first clamping groove cooperating with the first clamping protrusion is provided on the connecting ring.

[0019] A method for using an energy-saving device for an energy-saving three-phase asynchronous motor, comprising the following steps:

[0020] Step 1: When the asynchronous motor rotates normally, the first gear teeth mesh with the second gear teeth, and the rotation of the first rotating block can drive the first rotating shaft to rotate, and then drive the heat dissipation fan to perform heat dissipation. The first plug contacts the first connecting block, driving the first connecting block and the first rotating cylinder to rotate, driving the temperature memory metal and the first rotating block connected thereto to rotate. When the rotating shaft rotates in the opposite direction, the first plug is driven by the first inclined surface to compress the first spring. At this time, the rotating shaft does not drive the first rotating cylinder to rotate, does not drive the heat dissipation fan to rotate, and does not perform heat dissipation.

[0021] Step 2: When the rotating shaft rotates normally, it drives the second connecting block to rotate, and the second connecting block contacts the second plug rod, driving the second plug rod to move outward, and under the guidance of the guide rod, it moves outward. At this time, the rotating shaft can drive the third rotating cylinder to rotate, drive the guide plate to rotate, adjust the direction of the heat dissipation air brought by the elastic connecting layer and the partition plate, and expand the heat dissipation area. As the second connecting block is separated from the second plug rod, the third rotating cylinder returns to its original position under the elastic force of the second spring, waiting for the next rotation. In this way, as the rotating shaft rotates, the guide plate can be driven to rotate cyclically to expand the heat dissipation area. When the rotating shaft is reversed, it will not affect the second plug rod.

[0022] Step 3: When the rotating shaft is working normally, the third plug rod cooperates with the fourth connecting block to drive the first clamping protrusion to clamp into the first clamping groove, thereby limiting the position of the heat sink. When the rotating shaft rotates in the opposite direction, the third plug rod drives the fourth connecting block to rotate, thereby driving the fourth rotating shaft tube to rotate, and the first clamping protrusion disengages from the first clamping groove. At this time, the heat sink can be removed by holding the handle for cleaning.

[0023] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects: when the asynchronous motor is working, it rotates, driving the rotating shaft to rotate; when the operating temperature of the rotating part and the rotating shaft is not high, the rotating shaft rotates, driving the first rotating block to rotate; after the operating temperature of the rotating part and the rotating shaft exceeds the critical temperature of the temperature memory metal, the temperature memory metal senses the temperature change and stretches, driving the first rotating block to move toward the first rotating shaft, and drives the cooling fan to rotate under the connection of the connecting unit to dissipate heat to the rotating part and the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention. Figure 2 ;

[0026] Figure 3 This is a partial cross-sectional structural diagram of a limiting unit in an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the overall structure of an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention. Figure 3 ;

[0028] Figure 5The overall structure of an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention is schematically shown. Figure 4 ;

[0029] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 7 This is a partial cross-sectional structural diagram of an adjustment unit in an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention;

[0031] Figure 8 This is a schematic structural diagram of the second annular clamping protrusion and the second annular clamping groove in the energy-saving device of an energy-saving three-phase asynchronous motor provided by the present invention;

[0032] Figure 9 It is a partial cross-sectional structural schematic diagram of a first rotating unit in an energy-saving device for an energy-saving three-phase asynchronous motor provided by the present invention;

[0033] Figure 10 The present invention provides a schematic structural diagram of the first annular clamping protrusion and the first annular clamping groove in an energy-saving device for an energy-saving three-phase asynchronous motor.

[0034] Figure numerals: 1. Main housing; 2. Rotating shaft; 3. Rotating portion; 4. First rotating shaft; 5. Cooling fan; 6. First rotating block; 7. Temperature memory metal; 8. First connecting rod; 9. Conveyor belt; 10. First rotating cylinder; 11. First connecting block; 12. First inclined surface; 13. First slot; 14. First insertion rod; 15. First spring; 16. First curved surface; 17. Second rotating cylinder; 18. Through hole; 19. First annular clamping protrusion; 20. First annular clamping groove; 21. Rotating gear; 22. First gear teeth; 23. Second gear teeth; 24. Third rotating cylinder; 25. Second annular clamping protrusion; 26 , second annular clamping groove; 27, guide plate; 28, elastic connecting layer; 29, second connecting block; 30, second curved surface; 31, second plug rod; 32, third connecting block; 33, second inclined surface; 34, guide rod; 35, first connecting plate; 36, second spring; 37, heat dissipation plate; 38, connecting ring; 39, holding handle; 40, limiting protrusion; 41, limiting groove; 42, fourth rotating cylinder; 43, fourth connecting block; 44, third inclined surface; 45, second slot; 46, third plug rod; 47, third spring; 48, third curved surface; 49, first clamping protrusion; 50, first clamping groove; 51, partition plate. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0036] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The embodiment of the present invention provides an energy-saving device for an energy-saving three-phase asynchronous motor, such as Figures 1-10 As shown, it includes a main housing 1, a rotating shaft 2 is provided on the main housing 1, a rotating part 3 for driving the rotating shaft 2 to rotate is provided in the main housing 1, and further includes:

[0038] a heat dissipation unit disposed in the main housing 1 and configured to dissipate heat from the rotating shaft 2 and the rotating portion 3, the heat dissipation unit comprising a plurality of first rotating shafts 4, each of the plurality of first rotating shafts 4 being provided with a heat dissipation fan 5 on its side;

[0039] A first rotating unit is provided outside the rotating shaft 2 and includes a plurality of first rotating blocks 6 distributed in a circumferential array outside the rotating shaft 2, wherein the plurality of first rotating blocks 6 are connected to the rotating shaft 2 via a temperature memory metal 7; and

[0040] a connecting unit, which is used to connect the first rotating shaft 4 and the first rotating block 6,

[0041] The temperature memory metal 7 extends in the first temperature range and cooperates with the connecting unit to make the first rotating block 6 contact the first rotating shaft 4, and the first rotating block 6 drives the first rotating shaft 4 to rotate;

[0042] The temperature memory metal 7 has a constant length in the second temperature range and cooperates with the connecting unit to prevent the first rotating block 6 from contacting the first rotating shaft 4 , so that the rotation of the first rotating block 6 does not affect the rotation of the first rotating shaft 4 .

[0043] A first connecting rod 8 is fixedly connected to the main housing 1 , and a plurality of first rotating shafts 4 are rotatably connected to the first connecting rod 8 . The plurality of first rotating shafts 4 are connected by a conveyor belt 9 .

[0044] Here, the first temperature range refers to the case where the motor operating temperature is relatively high, and the second temperature range refers to the case where the motor operating temperature reaches the warning line.

[0045] When the above-mentioned device is actually used, when the asynchronous motor is working (we define the clockwise rotation direction as the rotation direction of the asynchronous motor as shown in the attached figure), it rotates, driving the rotating shaft 2 to rotate. When the working temperature of the rotating part 3 and the rotating shaft 2 is not high, the rotating shaft 2 rotates, driving the first rotating block 6 to rotate. After the working temperature of the rotating part 3 and the rotating shaft 2 exceeds the critical temperature of the temperature memory metal 7, the temperature memory metal 7 senses the temperature change and stretches, driving the first rotating block 6 to move toward the first rotating shaft 4. Under the connection of the connecting unit, it drives the cooling fan 5 to rotate to dissipate heat from the rotating part 3 and the rotating shaft 2.

[0046] Combine Figure 6 、 Figure 9 and Figure 10 The first rotating unit includes a first rotating cylinder 10, and a plurality of first connecting blocks 11 distributed in a circumferential array are fixedly connected to the first rotating cylinder 10. A first inclined surface 12 is provided on the first connecting block 11, and a first slot 13 is provided on the rotating shaft 2. A first insertion rod 14 is inserted into the first slot 13, and the first insertion rod 14 is connected to the first slot 13 through a first spring 15 for providing elastic force. A first curved surface 16 is provided on the first insertion rod 14. The outer side of the first rotating cylinder 10 is connected to the first rotating block 6 through a temperature memory metal 7. A second rotating cylinder 17 is provided on the outer side of the first rotating cylinder 10, and a plurality of through holes 18 cooperating with the first rotating block 6 are provided on the second rotating cylinder 17.

[0047] A first annular clamping protrusion 19 is fixedly connected to the second rotating cylinder 17 , and a first annular clamping groove 20 that cooperates with the first annular clamping protrusion 19 is provided on the first rotating cylinder 10 .

[0048] The connecting unit includes a rotating gear 21 , which is fixedly connected to the first rotating shaft 4 close to the rotating shaft 2 . The rotating gear 21 is provided with first gear teeth 22 , and the first rotating block 6 is provided with second gear teeth 23 meshing with the first gear teeth 22 .

[0049] When the above-mentioned first rotating unit is actually used, when the asynchronous motor is performing normal working rotation, the first gear teeth 22 are engaged with the second gear teeth 23, and the rotation of the first rotating block 6 can drive the first rotating shaft 4 to rotate, and then drive the cooling fan 5 to perform heat dissipation. The first plug 14 contacts the first connecting block 11, driving the first connecting block 11 and the first rotating cylinder 10 to rotate, driving the temperature memory metal 7 and the first rotating block 6 connected thereto to rotate. When the rotating shaft 2 rotates in the opposite direction, the first plug 14 is driven by the first inclined surface 12 to compress the first spring 15. At this time, the rotating shaft 2 does not drive the first rotating cylinder 10 to rotate, does not drive the cooling fan 5 to rotate, and does not dissipate heat.

[0050] Combine Figure 7 and Figure 8 The rotating shaft 2 is provided with an adjusting unit for adjusting the heat dissipation position of the heat dissipation unit.

[0051] The adjustment unit includes a third rotating cylinder 24, which is sleeved on the outside of the rotating shaft 2. A second annular clamping protrusion 25 is fixedly connected to the rotating shaft 2. A second annular clamping groove 26 that cooperates with the second annular clamping protrusion 25 is provided on the third rotating cylinder 24. A plurality of groups of guide plates 27 distributed in a circumferential array are fixedly connected to the side of the third rotating cylinder 24. Each group of guide plates 27 is connected to a partition plate 51 through an elastic connecting layer 28. The partition plates 51 are arranged on both sides of the heat dissipation unit. The partition plates 51 are connected to the main shell The body 1 is fixedly connected, and a second connecting block 29 is fixedly connected to the side of the rotating shaft 2, and a second curved surface 30 is provided on the second connecting block 29. A second insertion rod 31 is inserted into the third rotating cylinder 24, and a third connecting block 32 is fixedly connected to the side of the second insertion rod 31, and a second inclined surface 33 is provided on the third connecting block 32. A guide rod 34 is fixedly connected to the rotating part 3, and a first connecting plate 35 is fixedly connected inside the third rotating cylinder 24. The second insertion rod 31 is connected to the first connecting plate 35 by a second spring 36 for providing elastic force.

[0052] When the above-mentioned adjustment unit is actually used, when the rotating shaft 2 rotates normally, it drives the second connecting block 29 to rotate, and the second connecting block 29 contacts the second plug rod 31, driving the second plug rod 31 to move outward, and under the guidance of the guide rod 34, it moves outward. At this time, the rotating shaft 2 can drive the third rotating cylinder 24 to rotate, drive the guide plate 27 to rotate, and adjust the direction of the heat dissipation wind brought by the elastic connecting layer 28 and the partition plate 51 to expand the heat dissipation area. As the second connecting block 29 disengages from the second plug rod 31, under the elastic force of the second spring 36, the third rotating cylinder 24 returns to its original position and waits for the next rotation. In this way, as the rotating shaft 2 rotates, the guide plate 27 can be driven to rotate cyclically to expand the heat dissipation area. When the rotating shaft 2 is reversed, it will not affect the second plug rod 31.

[0053] A heat sink 37 is provided on the main shell 1, a connecting ring 38 is fixedly connected to the heat sink 37, a holding handle 39 is fixedly connected to the connecting ring 38, a limiting protrusion 40 is provided on the main shell 1, a limiting groove 41 is provided on the heat sink 37, and the heat sink 37 is connected to the rotating shaft 2 through a limiting unit.

[0054] Combine Figure 2 and Figure 3 The limiting unit includes a fourth rotating cylinder 42 sleeved on the outside of the rotating shaft 2, and a fourth connecting block 43 is fixedly connected to the fourth rotating cylinder 42, and a third inclined surface 44 is provided on the fourth connecting block 43. A second slot 45 is opened on the rotating shaft 2, and a third insertion rod 46 is inserted in the second slot 45. The third insertion rod 46 is connected to the second slot 45 through a third spring 47 for providing elastic force, and a third curved surface 48 is provided on the third insertion rod 46. A first clamping protrusion 49 is fixedly connected to the fourth connecting block 43, and a first clamping groove 50 that cooperates with the first clamping protrusion 49 is provided on the connecting ring 38.

[0055] When the above-mentioned limiting unit is actually used, when the rotating shaft 2 is working normally, the third insertion rod 46 cooperates with the fourth connecting block 43 to drive the first clamping protrusion 49 to be clamped in the first clamping groove 50, thereby limiting the position of the heat sink 37. When the rotating shaft 2 rotates in the opposite direction, the third insertion rod 46 drives the fourth connecting block 43 to rotate, drives the fourth rotating shaft tube to rotate, and the first clamping protrusion 49 disengages from the first clamping groove 50. At this time, the heat sink 37 can be removed for cleaning by holding the handle 39.

[0056] A method for using an energy-saving device for an energy-saving three-phase asynchronous motor, comprising the following steps:

[0057] Step 1: When the asynchronous motor is rotating normally, the first gear teeth 22 mesh with the second gear teeth 23, and the rotation of the first rotating block 6 can drive the first rotating shaft 4 to rotate, and then drive the cooling fan 5 to perform heat dissipation. The first plug 14 contacts the first connecting block 11, driving the first connecting block 11 and the first rotating cylinder 10 to rotate, driving the temperature memory metal 7 and the first rotating block 6 connected thereto to rotate. When the rotating shaft 2 rotates in the opposite direction, the first plug 14 is driven by the first inclined surface 12 to compress the first spring 15. At this time, the rotating shaft 2 does not drive the first rotating cylinder 10 to rotate, does not drive the cooling fan 5 to rotate, and does not perform heat dissipation.

[0058] Step 2: When the rotating shaft 2 rotates normally, it drives the second connecting block 29 to rotate, and the second connecting block 29 contacts the second plug rod 31, driving the second plug rod 31 to move outward, and under the guidance of the guide rod 34, it moves outward. At this time, the rotating shaft 2 can drive the third rotating cylinder 24 to rotate, drive the guide plate 27 to rotate, adjust the direction of the heat dissipation wind brought by the elastic connecting layer 28 and the partition plate 51, and expand the heat dissipation area. As the second connecting block 29 is separated from the second plug rod 31, under the elastic force of the second spring 36, the third rotating cylinder 24 returns to its original position and waits for the next rotation. In this way, as the rotating shaft 2 rotates, the guide plate 27 can be driven to rotate cyclically to expand the heat dissipation area. When the rotating shaft 2 is reversed, it will not affect the second plug rod 31.

[0059] Step 3: When the rotating shaft 2 is working normally, the third insertion rod 46 cooperates with the fourth connecting block 43 to drive the first clamping protrusion 49 to be clamped in the first clamping groove 50, thereby limiting the position of the heat sink 37. When the rotating shaft 2 rotates in the opposite direction, the third insertion rod 46 drives the fourth connecting block 43 to rotate, thereby driving the fourth rotating shaft tube to rotate, and the first clamping protrusion 49 disengages from the first clamping groove 50. At this time, the heat sink 37 can be removed for cleaning by holding the handle 39.

[0060] To sum up, the working principle of the present invention is as follows: when the asynchronous motor is performing normal working rotation, the first gear teeth 22 are meshed with the second gear teeth 23, and the rotation of the first rotating block 6 can drive the first rotating shaft 4 to rotate, and then drive the cooling fan 5 to perform heat dissipation operation, the first plug rod 14 contacts the first connecting block 11, drives the first connecting block 11 and the first rotating cylinder 10 to rotate, and drives the temperature memory metal 7 and the first rotating block 6 connected thereto to rotate; when the rotating shaft 2 rotates in the opposite direction, the first plug rod 14 is driven by the first inclined surface 12 to compress the first spring 15. At this time, the rotating shaft 2 does not drive the first rotating cylinder 10 to rotate, does not drive the cooling fan 5 to rotate, and does not perform heat dissipation; when the rotating shaft 2 rotates normally, it drives the second connecting block 29 to rotate, and the second connecting block 29 contacts the second plug rod 31, drives the second plug rod 31 to move outward, and under the guiding action of the guide rod 34, moves outward, at this time, the rotating shaft 2 can drive the third rotating cylinder 24 to rotate. When the rotating shaft 2 is rotated, the third plug rod 46 cooperates with the fourth connecting block 43 to drive the first engaging protrusion 49 to engage in the first engaging groove 50, thereby limiting the position of the heat dissipation plate 37. When the rotating shaft 2 rotates in the opposite direction, the third plug rod 46 drives the fourth connecting block 43 to rotate, drives the fourth rotating shaft tube to rotate, and the first engaging protrusion 49 is disengaged from the first engaging groove 50. At this time, the heat dissipation plate 37 can be removed for cleaning by holding the handle 39.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving device for an energy-saving three-phase asynchronous motor, comprising a main housing (1), characterized in that: The main housing (1) is provided with a rotating shaft (2), and the main housing (1) is provided with a rotating portion (3) for driving the rotating shaft (2) to rotate, and further comprising: a heat dissipation unit, which is arranged in the main housing (1) and is used to dissipate heat from the rotating shaft (2) and the rotating part (3); the heat dissipation unit comprises a plurality of first rotating shafts (4), and a heat dissipation fan (5) is provided on the side of each of the plurality of first rotating shafts (4); A first rotating unit is arranged outside the rotating shaft (2); it comprises a plurality of first rotating blocks (6) distributed in a circumferential array outside the rotating shaft (2); the plurality of first rotating blocks (6) are all connected to the rotating shaft (2) via a temperature memory metal (7); and a connecting unit, which is used to connect the first rotating shaft (4) and the first rotating block (6), The temperature memory metal (7) stretches in a first temperature range and cooperates with the connection unit to enable the first rotating block (6) to contact the first rotating shaft (4), and the first rotating block (6) drives the first rotating shaft (4) to rotate; The temperature memory metal (7) has a constant length in the second temperature range and cooperates with the connection unit so that the first rotating block (6) does not contact the first rotating shaft (4), and the rotation of the first rotating block (6) does not affect the rotation of the first rotating shaft (4).

2. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 1, characterized in that: A first connecting rod (8) is fixedly connected to the main housing (1), a plurality of the first rotating shafts (4) are rotatably connected to the first connecting rod (8), and the plurality of the first rotating shafts (4) are connected via a conveyor belt (9).

3. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 2, characterized in that: The first rotating unit comprises a first rotating cylinder (10), wherein a plurality of first connecting blocks (11) distributed in a circumferential array are fixedly connected in the first rotating cylinder (10), a first inclined surface (12) is provided on the first connecting block (11), a first slot (13) is provided on the rotating shaft (2), a first insertion rod (14) is inserted in the first slot (13), the first insertion rod (14) is connected to the first slot (13) through a first spring (15) for providing elastic force, a first curved surface (16) is provided on the first insertion rod (14), the outer side of the first rotating cylinder (10) is connected to the first rotating block (6) through a temperature memory metal (7), a second rotating cylinder (17) is provided on the outer side of the first rotating cylinder (10), and a plurality of through holes (18) cooperating with the first rotating block (6) are provided on the second rotating cylinder (17).

4. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 3, characterized in that: A first annular clamping protrusion (19) is fixedly connected to the second rotating cylinder (17), and a first annular clamping groove (20) matching the first annular clamping protrusion (19) is provided on the first rotating cylinder (10).

5. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 4, characterized in that: The connecting unit comprises a rotating gear (21), the rotating gear (21) being fixedly connected to the first rotating shaft (4) close to the rotating shaft (2), the rotating gear (21) being provided with first gear teeth (22), and the first rotating block (6) being provided with second gear teeth (23) meshing with the first gear teeth (22).

6. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 5, characterized in that: An adjusting unit for adjusting the heat dissipation position of the heat dissipation unit is provided on the rotating shaft (2).

7. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 6, characterized in that: The regulating unit comprises a third rotating cylinder (24), the third rotating cylinder (24) is sleeved on the outer side of the rotating shaft (2), the rotating shaft (2) is fixedly connected with a second annular clamping protrusion (25), the third rotating cylinder (24) is provided with a second annular clamping groove (26) matched with the second annular clamping protrusion (25), the side of the third rotating cylinder (24) is fixedly connected with a plurality of groups of guide plates (27) distributed in a circumferential array, each group of the guide plates (27) is connected to a partition plate (51) through an elastic connection layer (28), the partition plates (51) are arranged on both sides of the heat dissipation unit, and the partition plates (51) are connected to the main shell (1 ) is fixedly connected, the side of the rotating shaft (2) is fixedly connected with a second connecting block (29), the second connecting block (29) is provided with a second curved surface (30), a second insertion rod (31) is inserted into the third rotating cylinder (24), the side of the second insertion rod (31) is fixedly connected with a third connecting block (32), the third connecting block (32) is provided with a second inclined surface (33), a guide rod (34) is fixedly connected to the rotating part (3), a first connecting plate (35) is fixedly connected inside the third rotating cylinder (24), and the second insertion rod (31) is connected to the first connecting plate (35) through a second spring (36) for providing elastic force.

8. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 7, characterized in that: The main housing (1) is provided with a heat dissipation plate (37), a connecting ring (38) is fixedly connected to the heat dissipation plate (37), a holding handle (39) is fixedly connected to the connecting ring (38), a limiting protrusion (40) is provided on the main housing (1), a limiting groove (41) is provided on the heat dissipation plate (37), and the heat dissipation plate (37) is connected to the rotating shaft (2) via a limiting unit.

9. The energy-saving device for an energy-saving three-phase asynchronous motor according to claim 8, characterized in that: The limiting unit includes a fourth rotating cylinder (42) sleeved on the outside of the rotating shaft (2), a fourth connecting block (43) is fixedly connected to the fourth rotating cylinder (42), a third inclined surface (44) is provided on the fourth connecting block (43), a second slot (45) is provided on the rotating shaft (2), a third insertion rod (46) is inserted into the second slot (45), the third insertion rod (46) is connected to the second slot (45) through a third spring (47) for providing elastic force, a third curved surface (48) is provided on the third insertion rod (46), a first clamping protrusion (49) is fixedly connected to the fourth connecting block (43), and a first clamping groove (50) is provided on the connecting ring (38) to cooperate with the first clamping protrusion (49).

10. A method for using an energy-saving device for an energy-saving three-phase asynchronous motor, characterized in that: An energy-saving device comprising the energy-saving three-phase asynchronous motor according to claim 9, comprising the steps of: Step 1: When the asynchronous motor rotates normally, the first gear teeth (22) mesh with the second gear teeth (23), and the rotation of the first rotating block (6) can drive the first rotating shaft (4) to rotate, and then drive the heat dissipation fan (5) to perform heat dissipation operation. The first plug rod (14) contacts the first connecting block (11), drives the first connecting block (11) and the first rotating cylinder (10) to rotate, and drives the temperature memory metal (7) and the first rotating block (6) connected thereto to rotate. When the rotating shaft (2) rotates in the opposite direction, the first plug rod (14) is driven by the first inclined surface (12) to compress the first spring (15). At this time, the rotating shaft (2) does not drive the first rotating cylinder (10) to rotate, does not drive the heat dissipation fan (5) to rotate, and does not perform heat dissipation. Step 2: When the rotating shaft (2) rotates normally, it drives the second connecting block (29) to rotate, and the second connecting block (29) contacts the second plug rod (31), drives the second plug rod (31) to move outward, and under the guidance of the guide rod (34), moves outward. At this time, the rotating shaft (2) can drive the third rotating cylinder (24) to rotate, drive the guide plate (27) to rotate, adjust the direction of the heat dissipation wind brought by the elastic connecting layer (28) and the partition plate (51), and expand the heat dissipation area. As the second connecting block (29) is separated from the second plug rod (31), under the elastic force of the second spring (36), the third rotating cylinder (24) returns to its original position and waits for the next rotation. In this way, as the rotating shaft (2) rotates, the guide plate (27) can be driven to rotate cyclically to expand the heat dissipation area. When the rotating shaft (2) is reversed, it will not affect the second plug rod (31); Step 3: When the rotating shaft (2) is working normally, the third plug rod (46) cooperates with the fourth connecting block (43) to drive the first clamping protrusion (49) to be clamped in the first clamping groove (50), thereby limiting the position of the heat sink (37). When the rotating shaft (2) rotates in the opposite direction, the third plug rod (46) drives the fourth connecting block (43) to rotate, thereby driving the fourth rotating shaft tube to rotate, and the first clamping protrusion (49) is disengaged from the first clamping groove (50). At this time, the heat sink (37) can be removed for cleaning by holding the handle (39).

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